HCIP-Storage V5.0 H13-624_V5.0 Exam Dumps

dumps2023-03-23T10:25:27+08:00

H13-624_V5.0 exam is one for HCIP-Storage V5.0 certification. The H13-624_V5.0 exam basic information is useful for you to test. There are 60 questions in the real Huawei certification H13-624_V5.0 exam, and you have 90 minutes to write all the questions. The passing score for the H13-624_V5.0 exam is 600. The exam cost is $300. The available languages are Chinese, English, and Japanese. We have cracked the latest HCIP-Storage V5.0 H13-624_V5.0 exam dumps for you to pass. Free Huawei certification H13-624_V5.0 exam dumps are below.

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1. In Oceanstor 9000, which is wrong about WushanFS global cache technology?

The Global Cache in WushanFS logically forms the memory space on all storage servers into an overall memory resource pool

The data in the cache of a certain node cannot be hit by the read and write services of other nodes

Global cache technology helps to improve node memory resource sharing

WushanFS uses distributed locks to implement global cache data management. The same business data is only cached on a certain node. When other nodes need to access the data, they can obtain the cached data by applying for locks.

2. An enterprise customer plans to purchase Huawei Oceanstor 9000 to meet its 10PB data storage requirements. The customer chooses the C36 node of Oceanstor 9000. The node is equipped with 4T SATA disks, and the nodes use 4+2 distributed RAID storage. Assuming that the system loss (including metadata and system data possession, hard disk loss, etc.) is 10%, theoretically, how many C36 nodes does the customer need to purchase at least to meet their business data storage needs?

119

131

107

3. Which of the following statements about the N8500 configuration process is correct?

Welcome Wizard-->Confirm Networking-->Select Configuration File-->Configure Storage Unit-->Configure NAS Engine-->Configure Device Location-->Complete Deployment

Confirm networking --> Welcome Wizard --> Select Configuration File --> Configure Storage Unit --> Configure NAS Engine --> Configure Device Location --> Complete Deployment

Confirm networking --> Welcome Wizard --> Configure storage unit --> Select configuration file --> Configure NAS engine --> Configure device location --> Complete deployment

Confirm networking --> Welcome Wizard --> Select Configuration File --> Configure NAS Engine --> Configure Storage Unit --> Configure Device Location --> Complete Deployment

4. Which of the following is wrong about the CIFS share configuration of Huawei Oceanstor 9000?

After Notify is enabled and checked, a client's change operation in a directory cannot be perceived by other clients that are accessing this directory and its parent directory

After Oplock (Opportunistic locking) is enabled, the file will be cached locally before being sent to the shared storage, which will help improve the efficiency of client access

After the Guest is enabled and checked, the user does not need to enter the user name and password when accessing the shared directory on the client

After the mandatory signature is checked, the client will be forced to use the signature function. If the client is not set to start, Oceanstor 9000 will reject the data access request of the client

5. Which of the following statements about unpacking and inspection is wrong?

If there is a wrong or out of stock when unpacking and inspecting the goods, please fill in the "Cargo Error Feedback Form" and report it to the local office

When opening the box for inspection, the engineering supervisor can open the box and check the goods separately

If the goods do not match the packing list, the equipment that has been unpacked should be transferred indoors for proper storage

6. Regarding the performance of hard disks under various types of Huawei Oceanstor 9000 nodes, which one is the correct order from high to low?

P25 Node SSD hard disk-->P25 Node SAS hard disk-->P12 SATA hard disk-->P36 Node SATA hard disk-->C36 SATA hard disk

P25 Node SSD hard disk-->P25 Node SAS hard disk-->P12 SATA hard disk-->C36 SATA hard disk

P25 Node SSD hard disk-->P25 Node SAS hard disk-->P36 Node SATA hard disk-->P12 SATA hard disk-->C36 SATA hard disk

P25 Node SSD hard disk-->P25 Node SAS hard disk-->P36 Node SATA hard disk-->C36 SATA hard disk-->P12 SATA hard disk

7. In the Huawei Oceanstor 9000 system, which client type is not supported by NFS sharing?

Host name

IP address

Network group

AD domain

8. The infoEqualizer function of Huawei Oceanstor 9000 (30) is restricted by the license, including the application of dynamic names, static domain names, and partition functions, and supports scheduling loads in a round-robin manner

TRUE

FALSE

9. When accessing the Oceanstor SystemRepoter report tool, you need to enter https://IP:8088 in the browser address: where the IP is the business management IP of the Oceanstor 9001 system.

TRUE

FALSE

10. The offline upgrade process of the Huawei Oceanstor 9000 software version will interrupt business operation, and the business interruption time depends on the upgrade execution time

TRUE

FALSE

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11. Which of the following is not a feature of the Huawei WushanFS file system?

Performance and capacity can be expanded independently

Fully symmetrical distributed architecture with metadata nodes

Metadata is evenly distributed, eliminating the performance bottleneck of metadata nodes

Support 40PB single file system

12. There is a user whose quota type is capacity quota, and the quota method is mandatory quota. The recommended threshold for this user's usage capacity is

3GB, the soft threshold is 4GB, the hardware threshold is 6GB, and the grace period is 10 days. Which of the following options is incorrect?

When the storage space used by the user reaches 3GB, the system will not report an alarm, and the user can continue to write

When the user's used storage space reaches 5GB, and the storage capacity exceeds 4GB for 11 days, the user will be restricted from writing data

When the user's used storage space reaches 4GB, the system will report an alarm, and the data writing will not be restricted within the grace period

When the user's used storage space reaches 6GB, the system will prohibit data writing

13. Which of the following descriptions about Wushan SQL is wrong?

Each node in Wushan SQL shares system resources such as CPU, memory, and storage with each other

In Wushan SQL, business data is scattered on multiple physical nodes, and data analysis tasks are pushed to the nodes where the data resides for execution

Wushan SQL needs to be coordinated through the control module to complete large-scale data processing

All business data in Wushan SQL is redundantly stored in different storage nodes

14. Between the two nodes of the Huawei N8000 (V200R001) cluster NAS, how many lines of redundancy are there between the heartbeat links?

15. When maintaining the Huawei Oceanstor 9000 system, special personnel are required to keep the root password of the system. Pay attention to encryption when passing the password, and try to avoid passing the password by email.

TRUE

FALSE

16. Among the node types of Oceanstor 9000, the node that does not need to consider IPMI management networking is the C72 node.

TRUE

FALSE

17. When a user analyzed his production equipment Oceanstor 9000 with Systemreporter, he found that the CPU utilization rate of some nodes in a certain partition exceeded 80%, but the average CPU utilization rate was about 50%. In addition, he found that the read and write bandwidth of a certain node remained within the performance specification More than 80% of all nodes, and less than 60% of other nodes. In this scenario, which of the following load balancing strategies is recommended?

Round Robin

By CPU utilization

Throughput by Node

Comprehensive negative results by node

18. In the Oceanstor 9000 system, if a node is offline for 2 days due to a power module failure and then returns to normal again, if the administrator does not manually restore the data to the node, the system will automatically restore the data that has changed during the offline time. Update to the recovered node.

TRUE

FALSE

19. The following commands about detecting the network on the switch side, the first description: the display Inter command can be used to view interface statistics and check whether the switch records interface packet loss. The second description: display logbuf, if discarding, pay attention to whether there is a loop in the back-end network.

Both descriptions are correct

The first is true and the second is false

The first is wrong and the second is correct

Both are wrong

20. Which of the following statements about Oceanstor 9000 maintenance is incorrect?

The system provides an admin (super administrator) account by default, which cannot be deleted

Only super administrators can execute the create system user command to create users

To check the information of all accounts, you can use the command cat /etc/passwd.

ps -ef command to check TCP service/port

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21. Huawei Oceanstor 9000 realizes storage of unstructured data through WushanSQL, and completes data analysis through Fusion Insight.

TRUE

FALSE

22. In a city, if the Municipal Public Security Bureau needs to regularly archive the video surveillance within the jurisdiction of each police station, in such an application scenario, if the solution provided by Oceanstor 9000VIRC30 is used, which node type should the customer recommend?

P12 node

P24 node

P36 node

P72 node

C36 node

23. In the Huawei Oceanstor 9000 storage system, when a certain InfoReplicator is in a split state, which of the following statements is incorrect?

Pair split occurs, the possible reason is temporary link abnormality or network bandwidth expansion

At this time, the master-slave relationship of the directories at both ends specified by Pair remains unchanged

When the pair is resynchronized, the difference data that was not copied to the secondary directory due to the split operation of the last synchronization and the synchronized quantity need to be synchronized

24. In the Huawei Oceanstor 9000 system, if the access storage system nodes of the client are unevenly distributed, after readjusting the partition, it is necessary to uninstall the shared directory on each client and remount it with the assigned domain name.

TRUE

FALSE

25. When accessing the Linux client of the Huawei Oceanstor9000 cluster, you can adjust the client parameters to improve access performance. Which of the following is wrong?

NFS uses the TCP protocol to send and receive data. Properly increasing the buffer size can speed up the TCP transmission speed.

Enabling jumbo frames can reduce TCP loss and improve performance. The premise is to confirm that all network devices between the Oceanstor 9000 front-end network interface and the client interface must support jumbo frames

In order to support jumbo frames, all corresponding Oceanstor 9000 nodes need to be set accordingly

Oceanstor9000 supports jumbo frames, and it is necessary to set the MTU of all front-end and back-end business network ports

26. Regarding the networking of the Huawei Oceanstor 9000 system, which of the following options is correct?

Whether it is a front-end business network or a back-end storage network, it is recommended to use two switches to connect all nodes to achieve redundancy

Only storage nodes need to be connected to the management network, other devices do not need to be connected to the management network

The switches of the front-end business network can be stacked, but the switches of the back-end storage network are not recommended to be stacked

To meet management needs, only the first three nodes of the cluster need to be connected to the management network

27. When Huawei Oceanstor 9000 is used in a large file scenario, we should focus on its OPS.

TRUE

FALSE

28. The Oceanstor 9000 big data storage system includes multiple subsystems, which one is used for file storage?

WushanFS

WushanSQL

Fusion Insight Hadoop

Management Subsystem

29. When planning the front-end service network IP address for the C72 node of Huawei Oceanstor 9000, it is necessary to plan 4 static front-end IP addresses for each node.

TRUE

FALSE

30. Regarding the switches used in the Huawei Oceanstor 9000 system, which of the following options are correct?

The switches configured with the Oceanstor 9000 storage system include CE6810, S5752/S5352, and IS5023.

IS5023 switch provides IB access

S5700/S5352C switches provide GE access

The CE6810 switch provides 10GE/GE access.

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31. If the Huawei N8000 clustered NAS system has 4 engine nodes and each node has 4 service network ports, how many virtual IPs do you need to plan?

32. Which of the following features in Huawei Oceanstor 9000 (C30) does not require the corresponding license to be activated?

Automatic tiered storage

Quota Management

Directory snapshot

Round Robin Load Balancing

33. In Huawei Oceanstor 9000, in order to ensure performance and improve hard disk utilization, it is recommended to set the stripe value according to the expected average file size in a directory. Regarding the stripe settings, which one is wrong?

The relationship between redundancy ratio and read/write performance from high to low is: N+1>N+2=N+2: 1>N+3: 1>N+4

Only non-empty directories can modify the redundancy ratio

The relationship between stripe size and read/write performance is: 512KB>256KB>128KB>16KB

The modified stripe size is only effective for the files that have been written, and the existing files before modification still maintain the stripe size before modification

34. Huawei Oceanstor 9000 alarm notification methods include email notification and SMS notification

TRUE

FALSE

35. Huawei Oceanstor 9000 integrates the hard disk resources of all nodes through DFS, and provides a unified namespace to the outside world.

TRUE

FALSE

36. Which of the following options does not include the file sharing interface provided by the Huawei Oceanstor 9000 system?

Object

NFS

CIFS

FTP

37. Which of the following descriptions about the cache in Huawei Oceanstor 9000 is wrong?

The first-level cache is the read cache of the storage node, and the location of the global cache is in the first-level cache

The secondary cache is used to cache the hotspot data of this node. Simultaneously cache the hotspot data of other nodes in the same node

The second-level cache is composed of SSD disks. If there is no SSD disk in the node, there is no second-level cache

Telegram cache (NVDIMM) is mainly used as a write cache.

38. Which one is incorrect about the description of Huawei Oceanstor 9000InfoTier features and related concepts?

B. The number of nodes in the node pool is limited, including a minimum of 3 nodes and a maximum of 20 nodes

C. The hard disks of all nodes in the node pool form a DiskPool according to the same type

D. The InfoTier feature corresponds to different file pool policies through different classifications

39. In the Oceanstor 9000 system, a node pool refers to a collection of nodes with the same characteristics (physical type/access specific energy), and dynamic hierarchical storage allows physical nodes in the same file system to be divided into different node pools.

TRUE

FALSE

40. At the time of Oceanstor 9000, Huawei adopted a scale-out architecture for the characteristics of big data and used a big data storage platform launched through X86 architecture hardware

TRUE

FALSE

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41. What is the unit that Huawei Oceanstor 9000 provides for CIFS/NFS/FTP sharing?

Contents

Documentation

User

User Groups

42. In Oceanstor 9000, if a hard disk is offline for 15 minutes, the recovery method of the data on the hard disk is: the system calculates the data on the hard disk and restores the data to other normal hard disks.

True

FALSE

43. The Huawei Oceanstor 9000 storage system adopts layered security maintenance. Which item does not belong to the application layer security content?

Cryptography

Authorization and Authentication Mechanisms

Use SSH/SFTP method to circumvent insecure network communication

Activity log

44. In the Huawei Oceanstor 9000 software architecture, the distributed object storage layer is based on the distributed file storage layer.

TRUE

FALSE

45. A customer uses Huawei Oceanstor 9000 to store its massive files. In order to facilitate sharing among multiple departments, a dedicated directory is created for each department. After running for a period of time, the storage resources become tense. The reason is that some departments overuse the storage space on Oceanstor 9000. Therefore, the customer can limit the use of space by setting quotas on the directories of these departments to ensure other departments can normally use Oceanstor 9000 storage resources

TRUE

FALSE

46. The Wushan file system in Oceanstor 9000 adopts the object storage method, but it only uses object storage for data, and does not use object storage for metadata

TRUE

FALSE

47. Regarding the principle of the Erasure Code N+M redundancy technology implemented in Oceanstor 9000, which item is wrong?

The Oceanstor 9000 system can configure different data protection levels for different directories/files

The data written to the Oceanstor 9000 system will first be divided into chunks according to the size

For every N chunk, calculate the check blocks of M chunks according to the ErasureCode algorithm

The utilization rate of the protected data space is about N/(N+M). The reliability of the data is determined by the value of

The larger the M, the higher the reliability

48. When analyzing and adjusting the factors affecting the performance of the Huawei Oceanstor 9000 client, the steps involved are: A - Check and adjust external interference factors. B - View performance metrics for performance monitoring tools. C - Check and adjust system configuration

Which should be the correct order?

abcba

bcbab

acbab

babcb

49. Which of the following descriptions about the physical division of Oceanstor 9000 is wrong?

Physical partitioning is an effective means of isolating faults

The failure of certain nodes will reduce the reliability level of data on other nodes in a physical domain with these nodes

Oceanstor 9000 realizes physical division through node pool and classification method

The administrator must add at least 2 storage nodes to a domain

50. Huawei Oceanstor 9000 provides external domain name resolution services through the "InfoEqualizer DNS IP address", accessed by dynamic domain names, the following types of file sharing, if a node failover occurs, which of the following sharing methods will not be interrupted?

NFSv3 file sharing

NFSv4 file sharing

CIFS file sharing

FTP file sharing

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51. Regarding the description of the data protection function of the Huawei Oceanstor 9000 system, which of the following options is incorrect?

Oceanstor 9000 implements N+M redundant storage of data through ErasureCode

Oceanstor 9000 implements redundant storage of metadata through mirroring

After physical domain division is enabled, a hard disk or node failure in a single domain will cause data reliability degradation or failure in other domains

When the protection level is N+1, the minimum number of nodes required by the cluster is 3

52. The metadata in Oceanstor 9000 object storage implements redundancy between nodes through mirroring, and each copy is an independent and complete copy, so as to improve the security of metadata and the performance of parallel metadata

TRUE

FALSE

53. In Huawei Oceanstor 9000, the client that processes the write request will slice the data according to the protection level specified by the file, write the data slices to the power-saving memory on the corresponding node, and then calculate the calibration by each node. Check the data sheet and write it into the power-saving memory of each 2 nodes. After all nodes are successfully written into the power-saving memory, the write operation is successful.

TRUE

FALSE

54. When restarting the Huawei Oceanstor 9000 node, if the log information shows "phy: 25; handle SMP req 2" and "phy: 26; handle SMP req 2", it means that the system disk is faulty, which may cause it to fail to start normally.

TRUE

FALSE

55. Adjust the TCP parameters of LINUX clients accessing the Huawei Oceanstor 9000 cluster to improve access performance. Under the 10GE network, TCP

It is recommended to increase the sending and receiving buffer size to the following values, net.ipv4.tcp_rmem='4000000 8000000 16000000'net.ipv4

+tcp_wmem='4000000 8000000 16000000' [Single Choice]

TRUE

FALSE

56. In the Oceanstor 9000 storage system, if you want to perform complete network optimization, you need to check and adjust from two aspects: storage nodes and switches.

TRUE

FALSE

57. The Huawei Oceanstor 9000 InfoTier file pool policy will determine the storage location of the file creation and the target classification when the file is re-striped. Which of the following statements about the file pool policy is incorrect?

The default policy has the lowest priority

The default policy can be modified

The relationship between the combination of strategy parameters is "or"

Up to 128 file pool policies can be configured

58. In the "Oceanstor 9000 network diagram", what type of switch b should be?

S5700

IS5023

CE6800

59. In the N8500 cluster NAS system, there are many service support system functions, such as NFS and CIFS basic service groups.

Which of the following is not an NFS service group resource agent?

NIC

Hashadow

Disk

60. In the era of big data, one should also have big data thinking. Which of the following statements is incorrect?

In the era of big data, data processing and analysis no longer depend on random samples

In the era of big data, one should be keen on pursuing the accuracy of data

In the era of big data, the processing and analysis of big data tends to predict what will happen

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61. In the Huawei Oceanstor 9000 system, a file pool refers to a collection of files that meet certain characteristics, and the file pool policy defines the rules for how the file pool is stored in the node pool.

TRUE

FALSE

62. Which of the following descriptions about the software components of Huawei Oceanstor 9000 products is correct?

NDMP backup requires license support

InfoStamper supports creating a snapshot of the root directory

The Oceanstor 9000 system loads in round robin by default

InfoAllocator controls the user's use of storage space by capacity or number of files

63. Regarding the NDMP features of Oceanstor 9000 products, which of the following option descriptions is incorrect?

The NDMP protocol supported by Oceanstor 9000 is version V4

The NDMP backup feature needs to purchase a license to use it

The NDMP feature of Oceanstor 9000 uses snapshot-based backup by default

In data protection scenarios and archiving scenarios, NDMP features can be used

64. Which of the following options is incorrect in describing the Huawei Oceanstor 9000 file pool strategy?

The create policy is used to determine the initial location of the file when creating the file system file. The conditions of this type of policy include storage path, file name, UID/GID

Nodes can be classified according to needs. For each partition, the load balancing system supports the configuration of independent load policies and independent access domain names

The load balancing strategy can be based on: CPU, memory, bandwidth, number of network connections, node capability value

Load balancing service support of Oceanstor 9000; round robin, CPU usage, number of node connections

65. In Oceanstor 9000, if the data protection level is set to 4+2, the corresponding metadata will generate 3 identical mirror images.

TRUE

FALSE

66. Regarding the hardware architecture of Oceanstor 9000, which one is wrong?

Except for the C72 node, all other nodes use the X86 hardware system

The Wushan SQL function should be deployed to 1 node

The enterprise-level Hadoop FusionInsight function should be deployed to 1 node

Each node of Oceanstor 9000 can provide external service access

67. The underlying virtualization of the N8000 clustered NAS system is realized through VxVM components. The virtual objects managed by VxVM include: VM disks, disk groups, subdisks, and Picks. Which one of the following explanations is correct?

The N8000 cluster file system VxVM is a non-log file system and can support files larger than 2T

The file system snapshot adopts copy-on-write (copy-on-write technology), and shares the storage space of the partition or volume with other file sets

The snapshot provided by N8000 is based on the file system level

Features such as file system snapshots, mirroring, and replication are implemented based on storage checkpoints

68. Which of the following descriptions about InfiniBand technology is wrong?

InfiniBand technology has the advantages of high bandwidth, low latency, and good system scalability

InfiniBand technology is often applied to the connection between servers

InfiniBand technology will be widely promoted in the Internet network connection

The switch is the basic component in the InfiniBand structure

69. The minimum number of nodes in the Huawei Oceanstor 9000 system is 3, and these 3 nodes can be of different types.

TRUE

FALSE

70. The Erasure code redundancy technology used by Oceanstor 9000 supports higher reliability and more flexible redundancy strategies than traditional RAID algorithms. Which of the following describes the wrong thing about the principle of Erasure code N+M? [ Multiple Choice Question]

When data is written, it is cut into N data blocks with the same size

M check blocks are calculated by the Erasure Code algorithm for every N consecutive data block (M<N)

The system stores N+M song data blocks in parallel in different hard disks

In the Erasure code storage mode, the system supports up to N hard disk failures

Page 8 of 30

71. In the Huawei Oceanstor 9000 system, which of the following functions or parameters will affect the InfoTier function?

Signature function

Notify function

Access Time Tracking

72. Through Huawei Oceanstor 9000 DeviceManager, we can view the real-time OPS performance indicators of the system.

TRUE

FALSE

73. The methods for HUAWEI Oceanstor 9000 License application activation include authorization activation and password activation.

True

FALSE

74. In the era of big data, the upgrading of traditional technology can no longer meet the needs of big data processing. Which of the following is not the direction of technological development in the era of big data?

Computing is developing toward clustering

Moving toward virtualization

The network is developing towards a higher speed, lower protocol overhead, and more effective direction

Develop from a non-relational database to a relational database

75. InfiniBand can be applied to communications between servers, servers and storage devices, and servers and networks.

TRUE

FALSE

76. When performing Oceanstor 9000 network optimization, which of the following commands can check whether the network port is connected?

ifconfig

ethtool

Ispci Igrep Ether

77. On the basis of fully interconnected data channels and communication channels, the cluster NAS system adopts cluster volume management technology to provide global storage management. Any node in the cluster can access the same storage space with the same volume device name to ensure the consistency of block device access

TRUE

FALSE

78. Oceanstor 9000 restricts file storage and re-striping through the InfoTier water level threshold. When configuring InfoTier, select the overflow flag (Spill over), and other parameters are default. Which of the following statements is correct?

When the used space accounts for 85% of the total storage space of the node pool, data can still be written to the node pool

When the used space accounts for 90% of the total storage space of the node pool, data can still be written to the node pool

When the used space accounts for 85% of the total storage space of the node pool, the system reports a read-only alarm

When the used space accounts for 90% of the total storage space of the node pool, the system reports an alarm of insufficient capacity

79. Which one is incorrect about the description of the Huawei Oceanstor 9000 software module?

OBS (Object-Based Store) provides reliable object storage for file system metadata and file data

CA (Chent Agent) is responsible for the semantic analysis of application protocols such as NFS/CIFS/FTP, and sends them to the underlying module for processing

Multiple value-added features such as snapshots, hierarchical storage, and remote replication are provided by the PVS module

MDS (MetaData Service) manages the metadata of the file system, and each node of the system can store metadata

80. Which of the following options is incorrect in describing the product features of Huawei Oceanstor 9000?

Oceanstor 9000 adopts a fully symmetrical logical architecture and business load balancing design, which can greatly improve the concurrent access capability of the system

Oceanstor 9000 uses a global cache, so the data is saved in the cache

Oceanstor 9000 does not support accessing Oceanstor DeviceManager through HTTPS

Oceanstor 9000 can expand smoothly, capacity and performance support linear expansion

Page 9 of 30

81. Which of the following is incorrect about the description of Oceanstor 9000InfoStamper's features?

The metadata of Oceanstor 9000 is redundant by mirroring, and COW technology is used for metadata

The InfoStamper feature provides file-level snapshots

Oceanstor 9000 InfoStamper adopts ROW technology

The advantage of using ROW is that it has less impact on system performance

82. Before performing re-striping, Oceanstor 9000 will judge whether the occupied space of the node pool in the target classification is higher than the read-only water level. If it is lower than the read-only water level, it can perform re-striping, otherwise it will not perform striping.

TRUE

FALSE

83. A Huawei Oceanstor 9000 cluster site is configured with 4 P36 nodes and adopts back-end IB networking. Without considering the temporary IP, how many back-end storage network IP addresses should be planned?

4 _

84. The evolution route of big data technology is from distributed storage to cloud storage, from intelligent analysis to distributed analysis.

TRUE

FALSE

85. Which of the following types of data does the NAS system focus on storing and managing?

Large chunks of data

File data

Small chunks of messages

Consecutive data blocks

86. Which of the following descriptions about the Oceanstor 9000Wushan file system is wrong?

The Wushan file system manages the underlying data in the form of objects, which simplifies the management method and metadata overhead

The Wushan file system adopts the object storage method and does not need to provide users with the traditional file system tree structure for users to use

The data object of the Wushan file system consists of a set of Stripes, and the stripes are generated by Erasure Code matrix operations

Each object in the Wushan file system is a combination of data and data attribute sets. Data attributes can be set according to application requirements, including data distribution, service quality, etc.

87. Which of the following descriptions about VCS services in clustered NAS systems is incorrect?

Dependencies between service groups can be defined

Dependencies between resources can be defined

Each resource corresponds to an Agent

In special cases, resource dependencies can be defined circularly

88. Which of the following options does not belong to the software module included in Huawei Oceanstor 9000 products?

OceanStor DFS

VCS

Wushan SQL

Fusion Insight Hadoop

89. When the balance strategy switch of Oceanstor 9000 is turned off, the system will not generate balance tasks in the scenarios of expanding nodes, deleting or disabling nodes, adding hard disks, hard disk pre-failures, and slow disks, but if the nodes are deleted, then open the balancing strategy switch, the system will automatically complete the data balance.

TRUE

FALSE

90. NFS is a method for realizing disk file sharing between Unix systems, and it supports a system protocol for applications to access data located in server disks through the network on the client side.

TRUE

FALSE

Page 10 of 30

91. The Huawei Oceanstor 9000 FRU replacement tool does not support the replacement of which of the following modules or devices?

Power module

Replace hard disk online c. cable

IO module

92. When accessing the LINUX client of the Huawei Oceanstor 9000 cluster, the number of concurrent NFS clients can be appropriately reduced to improve access performance.

TRUE

FALSE

93. Regarding the description of Huawei Oceanstor 9000, which of the following options is incorrect?

Oceanstor 9000 uses an asymmetric architecture

Oceanstor 9000 provides flexible and seamless expansion of 3-288 nodes

The Oceanstor 9000 system adopts a fully interconnected and fully redundant networking mode

Oceanstor 9000 adopts distributed cluster architecture, no single point of failure

94. Huawei Oceanstor 9000 adopts the decentralized technology, and the Wushan distributed file system has no performance bottleneck. As the number of nodes increases, the storage capacity and computing power increase linearly, and finally provide users with linearly increasing bandwidth and concurrency. number [single choice]

TRUE

FALSE

95. A customer plans to store a large number of files in a certain directory of Huawei Oceanstor 9000. Most of these files are between 64-128K in size. In order to improve hard disk utilization and read and write performance, the customer should store the files in the file directory How big is the Strip setting?

16K

32K

64K

128K

96. Which of the following is the difference between the wiselink and smartconnect technologies of Oceanstor 9000?

Domain name resolution function

Domain name design and zone management

Rebalance function

IP failover function between nodes

97. If the Huawei N8000 cluster NAS system has 6 engine nodes and 4 S5500T back-end storage, and each engine node has 8 service network ports, how many IP addresses do you need to plan in total?

103

104

105

106

98. Which of the following descriptions about Huawei Oceanstor 9000 quota features is incorrect?

Quota can be set based on user

Quota settings are based on user groups

Support setting quotas for file directories

Support setting quotas on files

99. The data synchronization methods in Oceanstor 9000 Inforeplicator include full synchronization and incremental synchronization, and incremental synchronization can be triggered manually or automatically

TRUE

FALSE

100. If a client of Huawei Oceanstor 9000 requires that after one of its connection channels fails, it can use other channels to continue to transmit data without interrupting the business. One of the necessary conditions is that the client must support the SMB3.0 protocol.

TRUE

FALSE

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101. A Huawei Oceanstor 9000 cluster office is configured with 6 C72 nodes. How many nodes should NIC0 be connected to the management network?

102. In Oceanstor 9000, the application of which of the following components requires license support.

NDMP backup

Same as unified network management

InfoReplicator

Unified view

103. Which of the following is not a component that must be included in the architecture of the NAS system?

Accessible Disk Arrays

File system

Access to the business interface of the file system

FC switch

104. Which of the following statements about the Oceanstor 9000 InfoLocker feature is incorrect?

WORM files can be modified and deleted

The WORM clock is only allowed to be set once, and it is no longer allowed to be changed after the setting is successful

When a directory is configured as a WORM root directory, all subdirectories, new directories and new files of the directory automatically obtain the WORM attribute of the parent directory

WORM-protected submission only supports automatic submission

105. In the case of a single port, Huawei Oceanstor 9000 cannot implement the SMB3 Multichannel function.

TRUE

FALSE

106. Which of the following statements about the preparations before configuration of the N8500 is incorrect?

The heartbeat port of the clustered NAS engine has been correctly connected to the heartbeat network

The clustered NAS engine service network port is not connected to the client service network until the configuration is complete

The clustered NAS engine is powered on correctly, and the status of the indicator light is normal

The hardware installation and connection of the cluster NAS engine nodes have been completed

107. What file system does Huawei Oceanstor 9000 use to provide a unified business access domain name?

NTFS

HDFS

WushanFS

EXT3

108. The inforeplicator feature of Oceanstor 9000 (C30) product can support synchronous and asynchronous remote replication at the same time.

TRUE

FALSE

109. In Huawei Oceanstor 9000, the client processing the write request will divide the data into pieces according to the protection level specified by the file, write the data piece into the power-saving memory on the corresponding node, and calculate the checksum by each node The data slice is written into the power-saving memory of each node. After all nodes are successfully written into the power-saving memory, the write operation is successful.

TRUE

FALSE

110. In the Oceanstor 9000 system, a node refers to a collection of nodes with the same characteristics (physical type/access performance), and dynamic hierarchical storage allows physical nodes in the same file system to be divided into different node pools.

TRUE

FALSE

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111. Network connection is required before the initial configuration of the big data system, and the networking of Huawei Oceanstor9000 is not included.

Front-end business network

Backend storage network

Manage the network

Heartbeat network

112. As shown in the figure "Oceanstor 9000 Networking Diagram", the nodes in the "Oceanstor 9000 Networking Diagram" use P36 nodes, so which switch in the networking diagram should NIC0 in the P36 node be connected to?

a switch

bSwitch

c switch

113. The N8000 provides a fencing function to avoid split brains. Which of the following is an incorrect description of the fencing function?

Monitor GAB and check for cluster membership changes

Guaranteed single view of cluster membership

Prevent multiple nodes from accessing shared storage with a volume manager without a single cluster control

Automatic recovery of the master node after an abnormality occurs in the cluster

114. Which of the following options is incorrect for the metadata description of Huawei Oceanstor 9000 storage system?

Oceanstor 9000 metadata is stored in a mirrored manner

Metadata on each node is a complete, independent copy

The purpose of mirror storage is to improve the security of metadata

The use of mirroring does not provide the system with access to metadata

115. Whether the Huawei Oceanstor 9000 is upgraded online or offline, it has no effect on device management.

TRUE

FALSE

116. Which of the following descriptions about the global cache of OceanStor 9000 is incorrect?

The memory spaces on all storage servers logically form a unified memory resource pool

The data cached on any storage server can be hit in the global cache when any subsequent storage server receives a request to access the data

Only one copy of all user data will be cached in the entire cluster system

The data and its verification data will be cached in the global cache

117. Huawei OceanStor 9000 provides a single file system externally and has a unified file system namespace. Which of the following descriptions about the unified namespace of OceanStor 9000 is incorrect?

The namespace is automatically created when OceanStor 9000 starts, and its name is consistent with the system name

As the root directory of the entire system, the namespace cannot be shared and accessed. Only the subdirectories below it can be shared and accessed.

A unified namespace provides users with a unified storage resource pool to achieve centralized management and allocation of storage space

Each file sharing directory is a subdirectory of the namespace

118. The cloud storage system provides downward pooling capabilities for hardware resources of different manufacturers and specifications, upwardly supports the protocols and APTI required in block, file, and object storage services, and provides flexible, elastic and flexible storage systems.

TRUE

FALSE

119. For security reasons, domains generally cannot access resources across domains. However, OceanStor 9000 supports the Cross-domain Policy File mechanism, enabling other domains to have access rights to OceanStor 9000 to achieve cross-domain resource access.

TRUE

FALSE

120. There are five P36 nodes in a certain storage cluster, and the front-end and back-end 10GE networking methods are adopted. The front-end service network provides two 10GE interfaces. When deploying distributed file system services and object storage services in a mixed manner, the number of IP addresses that need to be planned for the front-end business network is:

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121. Which of the following options does not belong to DSS ability?

Alarm management

SLA management

Service orchestration

Service release

122. OceanStor9000 supports clients of different protocols to access the same directory or file at the same time. For example, Windows client (CIFS protocol), Linux client (NFS protocol), Mac OS X client (CIFS protocol or NFS protocol)

TRUE

FALSE

123. OceanStor900 uses general-purpose x86 architecture hardware to deploy Scale-out NAS systems. All nodes realize high concurrency and high performance of the entire system data, mainly relying on three types of networking types: IB, 10GE and PCIE, among which the network performance of PCIE is higher. Well, easier to scale and manage.

TRUE

FALSE

124. A customer unit purchased 9 OceanStor9000 storage nodes. When planning and deploying, it is required that any three hard disks and one storage node fail, which will not affect the integrity of the data, and the overall storage space utilization rate is not less than 80%. The following options are more than 124. The appropriate ratio is:

8+1

6+3

6+3: 1

16+3:1

125. The object storage service (compatible with Amazon S3 and OpenStack Swift) provided by OceanStor9000 provides a unified RESTful API to the outside world, and the client can access the storage node through the STful API to realize data storage.

TRUE

FALSE

126. SmartMigration can completely migrate the business on the source LUN to the target LUN only when the host business is stopped.

TRUE

FALSE

127. When dealing with urgent problems, in order to facilitate the location of the problem, you can use some small tools developed by the maintenance personnel at work that do not involve obtaining customer data.

TRUE

FALSE

128. Which one of the following does not belong to the 4S expansion technology of OceanStor 18500/18800 products?

Scale-up

Scale-down

Scale-out

Scale-in

129. In synchronous remote replication, which of the following descriptions is correct regarding the processing flow of the storage receiving the I/O request sent by the server?

Send to the primary cache first, then to the primary storage, and then the primary storage is synchronized to the secondary cache

First sent to the master cache, and then sent to the slave cache by the master cache

Send to the master cache and the slave cache at the same time.

First send to the master-side cache, enable time slice technology in the master-side cache to synchronize to the slave-side cache

130. Huawei OceanStor V3 snapshots can restore the data of the source lun through the snapshot after the source lun is damaged or fails.

TRUE

FALSE

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131. Which automatic load balancing method is supported by default by Huawei OceanStor 9000 InfoEqualizer?

Number of connections by node

round robin

Throughput by Node

Combined load by node

132. Which of the following belongs to the application of unstructured data:

Enterprise ERP

Medical HIS database

Educational Video on Demand

Enterprise financial system

133. OceanStor9000 Wushan distributed file system supports online node expansion, linear increase in storage capacity and computing power, and finally provides users with linearly increasing bandwidth and concurrent numbers

True

False

134. When deploying OceanStor 9000 through the deployment tool, the IP address entered in the "IP Address Range" in the "DHCP Configuration" area is only used temporarily during the deployment process. After the deployment is successful, the IP address of each node is changed to the IP address planned in the configuration file

True

False

135. When maintaining the N8500 cluster NAS, the master account cannot log in to the N8500 cluster NAS system. The possible reasons are?

The console IP conflicts with other IPs in the network

The network port where the console IP is located is not connected to a network cable or is in showdown state

Username and password changed

There is a heartbeat link failure

136. In N8500 V200N001, which of the following commands can be used to check whether the status of the file system is online?

storage fs list

storage fs online

storage fs status

storage fs status show

137. Use Huawei OceanStor Toolkit V100R001 to perform inspection operations, which of the following is not included in the inspection wizard?

Select device

Select check items

Set inspection policy

Export inspection policy

138. For a multi-user multimedia on-demand service application, users use different code streams. When planning the LUN of the N8500 cluster IAS storage system in the background, which of the following prefetching strategy should be selected?

No prefetch

Fixed prefetching

Intelligent prefetching

Variable prefetch

139. When planning the back-end storage network IP address of the OceanStor 9000 IB networking deployment solution, it is necessary to plan 2 back-end storage IP addresses and 1 temporary IP address for each node.

True

False

140. Among the following software features of OceanStor 9000, which feature can provide file system snapshots?

InfoLocker

InfoStamper

InfoProtector

InfoEqualizer

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141. Through Huawei OceanStor 9000 Device Manager, we can view the real-time OPS performance indicators of the system.

True

False

142. When which of the following situations occurs, the Huawei OceanStor 9000 system will not start load balancing?

Add new node

Add new hard disk

The hard disk is offline 3 times within 10 minutes

Hard disk pre-failure

143. In Huawei OceanStor 9000, which of the following is not an authentication method supported by NFS sharing?

NIS authentication

LDAP authentication

Client IP address/hostname authentication

Local user authentication

144. Which load balancing method does the InfoEqualize feature of Huawei OceanStor 9000 not support?

CPU usage

User Groups

Number of Node Connections

Node Throughput

145. You can use the InfoLocker feature of OceanStor 9000 to meet the business scenario of writing once and reading many times.

True

False

146. Which of the following is the correct power-on sequence for the Huawei OceanStor 9000 big data storage system?

Cabinet--->Switch--->KVM---->Node

Cabinet--->KVM--->Switch---->Node

Cabinet--->Switch--->Node--->KVM

Cabinet--->Node--->KVM---->Switch

147. FusionStorage Block adopts a unique data block slicing technology and a data routing algorithm based on DHT Hash, which can evenly disperse volume data to a larger resource pool fault domain, so that each volume can obtain a larger Excellent IOPS and MBPS performance also makes the load of each hardware resource relatively balanced.

True

False

148. Which of the following descriptions about InfoRevive is correct?

The InfoRevive feature provided by OceanStor 9000 supports the continuity of video surveillance services without affecting the continuity of video surveillance services when the faulty node/disk exceeds the upper limit of redundancy.

After the read fault tolerance mode is turned on, when a fault occurs in the system and exceeds the configured redundancy upper limit, all damaged video file data can be rescued and read out.

After the read and write fault tolerance mode is enabled, when a fault occurs in the system and exceeds the configured redundancy limit, a certain proportion of damaged video file data can be rescued and read, and the file can continue to be written.

In addition to being applied to video surveillance scenarios, the InfoRevive feature can also be applied to other media industries such as TV stations.

149. Which of the following descriptions does not belong to the features of OceanStor9000?

OceanStor DFS, a self-developed distributed file system, supports massive unstructured data storage and realizes a global unified namespace.

Provide object storage service, compatible with Amazon S3 interface and OpenStack Swift interface.

It supports Fusion Insight Hadoop/Cloudera Hadoop encapsulated by open-source Hadoop components, allowing users to easily build an enterprise-level big data analysis platform.

Distributed metadata management supports linear expansion of 3~4000 nodes.

150. In OceanStor 9000, if a certain hard disk is offline for 15 minutes, the recovery method of the data on the hard disk is. The system calculates the data on the hard disk and restores the data to other normal hard disks.

TRUE

FALSE

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151. Which of the following options does not belong to the DFS adaptation layer software module in OceanStor9000?

OBS

MDS

PVS

152. The minimum number of nodes required for OceanStor9000 cluster deployment is?

153. The S5752/S5352 switches only support optional AC power modules.

TRUE

FALSE

154. High-speed Ethernet ports (such as QSFP+) and high-speed cables are used between CE6810-24S20-LI and CE6810-4854Q-EI to implement stacking.

TRUE

FALSE

155. In the Huawei OceanStor 9000 InfoEqualizer feature, a partition is a set of nodes that are used to separate and provide different services, and have the same dynamic domain name, static domain name, and automatic load balancing method.

TRUE

FALSE

156. Which of the following options is not a typical application scenario of cloud storage?

Government Cloud

Operational cloud c. Private cloud

Police Cloud

157. Which of the following descriptions about the hardware features of OceansStor9000 is wrong?

P25 is a high-performance storage node device with a height of 2

It is used in OPS-intensive application scenarios. It has 25 front service hard disk slots and two rear 2.5-inch operating system hard disk slots.

All types of storage nodes support inserting an SSD in slot 0 as a read cache to improve system read performance.

When an IB switch is used in the OceanStor 9000 network, the server is equipped with a 2-port IB network card, which provides two 40GE QSPP+ Ethernet optical ports for connecting to the IB switch.

C72 is a high-capacity archiving node device with a height of 4

It is used in large-capacity application scenarios. It has 72 business hard disk slots and 4 operating system hard disk slots.

158. Which of the following options does not belong to the advantages brought by the global cache?

Improve cache space utilization

Improve cache data access hit rate

Improve overall system performance

Improve system security and reliability

159. Which of the following interface modules is used on SX6018 to upgrade firewall software and other advanced debugging?

USB interface

I2C interface

Management network port

CONSOLE port

160. C72 is "a high-capacity archiving node device with a height of 4U, but it can also be fully equipped with 272 SAS disks to adapt to some scenarios with relatively high performance and capacity requirements.

TRUE

FALSE

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161. Which of the following options is wrong about the concept description of object storage service (compatible with OpenStack Swift interface)?

Account is the owner and manager of resources. Using Account, you can add, delete, check, and configure attributes for Containers, and you can also upload, download, and query Objects.

Object is an object, that is, data, which can be regarded as a file that can be accessed through the network.

Container supports nesting, thus avoiding the non-hierarchical container structure.

Container is a container for storing objects, which can be regarded as a directory that can be accessed through the network.

162. In the scenario of deploying FusionStorage file service, the customer has deployed 10 FusionStorage nodes and two management network switches. At this time, the number of IP addresses that need to be allocated for the management network is:

163. The back-end storage network interfaces of FusionStorage block, file, and object storage clusters must be completely isolated. When the physical clusters corresponding to multiple services share a pair of CE6800 switches, VLANs must be divided to distinguish the back-end storage networks of different clusters.

TRUE

FALSE

164. Which of the following options is wrong about managing fast storage resources?

Administrators can view volume resource information created by business group users or administrators.

Administrators can create, view, and delete Block Storage Service Levels.

When the volume resource status is not updated in time, the administrator can manually update it.

Storage resources are distributed to users through block resource pools. Administrators can view and modify resource pool information or delete resource pools.

165. Which of the following options does not belong to the challenges faced by big data analysis:

The traditional IT architecture cannot provide enough storage space for the rapidly growing amount of data

Traditional analysis methods are not suitable for the analysis of big data types

Massive data put forward higher requirements for fast, efficient and real-time data analysis

Need to have a high-capacity requirement for a one-stop solution

166. C72 is a large-capacity archiving node device with a height of 4U, but it can also be fully equipped with 72 SAS disks to adapt to some scenarios with relatively high performance and capacity requirements.

TRUE

FALSE

167. Which of the following descriptions about the FusionStorago management network is wrong?

On the node where DSS/OMS/FSM is deployed, two interfaces form a logical bond interface, and a management network IP address is assigned to the bond interface.

Only deploy FusionStorage file or object storage services. The first 3 to 5 nodes in the cluster are used as management nodes, and a management network IP address is assigned to them, which will automatically float on the NIC1 interface of these nodes.

The Mgmt interfaces of all storage nodes are connected to the management switch, and a management network IP address is assigned to each node.

When FusionStorage file or object storage services are deployed in a mixed manner, at least one object node should be selected as the management node (the total number of management nodes should not exceed 5). And assign a management network IP address to it, which will automatically float on the NIC1 interface of these nodes.

168. A storage cluster has five C72 nodes. Adopt the front-end and back-end 10CF networking mode. When deploying distributed system services and object storage services in a mixed manner, the number of IP addresses that need to be planned for the front-end business network is:

169. Which of the following options does not belong to the FusionStorage networking architecture?

to manage the network

Tenant network

Cluster storage network

Back-end storage network

170. Cloudera Hadoop docking process includes:

1 Data preparation.

2 Verify the docking status

3 Install HDFS Plugin to Cloudera Hadoop nodes and clients.

4 Migrating business data

Which of the following options is in the correct docking order:

1-3-5-2-4

1-3-4-5-2

1-5-3-4-2

1-5-3-2-4

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171. In a customer scenario, the front-end uses a GE network and the back-end uses a 10GE network. Which of the following options is the correct way to use the corresponding interface?

A0-0 and A01 are connected to the back-end 10GE network, and B3-0 and B3-1 are connected to the front-end GE network

A0-0 and A0-1 are connected to the front-end GE network, and B3-0 and B3-1 are connected to the back-end 10GE network

A0-0 and B3-0 are connected to the front-end GE network A0-1 and B3-1 are connected to the back-end 10GE network

A0-0 and B3-1 are connected to the front-end GE network, and A0-1 and B3-0 are connected to the back-end 10GE network

172. Which of the following options is incorrect about the description of Bucket?

A bucket is a container for storing objects, which can be regarded as a directory that can be accessed through the network.

Buckets support nesting, thus avoiding non-hierarchical container structures.

Buckets and Containers have similar functions and can be accessed through the network.

Bucket life cycle management refers to the function of automatically deleting objects in the bucket after a certain period of time through configuration rules without client intervention.

173. Which of the following technologies are not included in the SmartQos feature of Huawei OceanStor V3?

I/O Priority Scheduling

Flow Control

I/O Latency Control

Cache partition

174. Which of the following cables does OceanStor V3 18800 products not support?

mini sas cable

sas cable

AOC cable

fc cable

175. What mechanism is the IO flow control technology in SmartQos based on to achieve user performance control goals (IOPS, bandwidth) for flow limitation?

SHA256

SHA1

Token Bucket

DHT

176. What type of LUN is the Huawei SmartErase feature applicable to?

Thin LUNs

Thick LUNs

Snapshot LUN

Mirror LUN

177. In the OceanStor V3 storage system, when configuring LUN Copy, you can choose different copy speeds based on business characteristics and storage system performance. If you try not to affect device performance during copying, which speed should you choose?

Low speed

Medium speed c. high speed

Maximum speed

178. Where is the shared mapping table of HyperSnap stored?

COW Data

Source LUN

Snapshot LUNs

Cow Meta

179. The data write-back process of Huawei Oceanstor V3 SmartVirtualization is that when the server sends a data write-back request, after the data is written into the cache of the local storage system, the local storage system will return the write I/O result to the server, and then talk about data writing into heterogeneous storage systems.

TRUE

FALSE

180. In the HyperMetro active-active solution, it is usually necessary to install UltraPath multipath software on the main server

TRUE

FALSE

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181. When using the Huawei OceanStor SmartMigration feature for data migration, when the host issues I/O write request, the data needs to be written to the source lun now, and after the migration is complete, the data is synchronized to the target lun.

TRUE

FALSE

182. Which statement is incorrect about Huawei Oceanstor v3 converged storage system?

The san engine and the file engine have independent architectures

Support san and nas at the same time through parallel dual stack

Use the same storage pool technology

The file system can realize data deduplication and compression function

183. When the inter-engine interconnection of Huawei Oceanstor 5600 v3 storage is extended, which interface card needs to be configured?

PCIE

10GE

SmartIO

184. Which one of the following does not belong to the svp maintenance management software of Oceanstor 18500 products?

Oceanstor device manager

Oceanstor toolkit

Oceanstor cloud service

Oceanstor esdk

185. The control information flow and service data flow between the engines of Huawei 18000 v3 series products are transmitted through which of the following components?

svp

kvm

pcie switch

10ge switch

186. What are the minimum migration granularity and default size of the smarttier stored in Oceanstor v3?

ck, 64mb or 256mb

ck, 4mb

extent, 4mb

graimn, 64kb

187. Which of the following belongs to the scale-out technology of Oceanstor 18500/18800 v3 products?

Use pcie2.0 full switching interconnection

Use pcie3.0 full switching interconnection

Use 10GE full switching interconnection

Use 4GB IB full switching interconnection

188. Cloning is a complete copy of the source data at a certain point in time, and it is a snapshot technology.

TRUE

FALSE

189. Which of the following is not a function of Oceanstor cloud service?

Automatic troubleshooting

Automatically check storage health status

The fault information is transmitted to the cloud server in real time

Discover device alarms at all times

190. What type of cable does Huawei Oceanstor v3 system storage use to cascade two storage devices?

FC Cable

SAS Cable

Mini SAS HD Cable

10G Ethernet Cable

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191. The Oceanstor 5800 v3 storage system controller box and hard disk box are interconnected by mini sas interface, and the maximum transmission rate can reach 8GB/s.

TRUE

FALSE

192. In Oceanstor v3 asynchronous remote replication, what is the minimum time interval that time slice technology can achieve?

5 seconds

5 minutes

3 minutes

3 seconds

193. Which of the following is not a step in the fault handling process?

Manually clear the network management alarm, so that the device alarm light goes out

Observe the fault phenomenon and collect fault information

Perform troubleshooting according to the "Event Reference" or "Troubleshooting" manual

Maintain the fault environment and contact the technical support engineer

194. When creating a file system snapshot, because the snapshot is stored in a new location, the write operation will affect the write performance of the storage lun

TRUE

FALSE

195. Which of the following protocols uses the SHA-256 algorithm?

FTP2.0

SMB2.0

NFS3.0

NFS4.0

196. The deduplication and compression function of Huawei Oceanstor v3 can save storage space for customers and reduce TCO. Which of the following statements about the deduplication and compression function is incorrect?

Data deduplication can be performed on the file system and thin lun

The minimum capacity unit for fingerprinting data is extent

Deduplication thickness data can be compressed, combined with deduplication and compression, the overall effect is better

If the system is configured with a deduplication and compression accelerator card, fingerprint calculation, compression, decompression and other operations will be completed by the accelerator card

197. In Oceanstor v3 storage, what is the function of configuring the oplock in the cifs share?

Improve access efficiency and cache locally before sending shares

Any update of a directory will be notified to the client using this directory

Shared to all users, no password authentication required

Store access rights settings for all users and user groups

198. SmartCache can support both SAN and NAS services.

TRUE

FALSE

199. The command to check the status of the controller in the cli management mode of Huawei storage oceanstor is:

show cotrolinfo

show controller general

show sys

show system general

200. Huawei Oceanstor v3 smartdedupe& smartcompression will definitely consume the system resources of the storage system during data deduplication and compression, thus reducing the performance of the storage system

TRUE

FALSE

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201. Rolling back a snapshot of a lun can restore data when the lun data is infected with a virus or is believed to be lost due to misuse, that is, copy all the data in the Cow space corresponding to the snapshot back to the source lun

TRUE

FALSE

202. For the same set of Oceanstor v3 storage system, Oceanstor toolkit and Oceanstor cloud service tools cannot be configured and used at the same time

TRUE

FALSE

203. The maintenance and management tools required by the Oceanstor 18000 high-end storage system are installed on the svp, so that users can easily complete a complete set of management, configuration, authentication and other tasks locally or remotely

TRUE

FALSE

204. In the oceanstor18000 system, svp can be used to manage the entire system, and svp can be interconnected with other engine nodes through a pcie switch

TRUE

FALSE

205. The Smart Matrix architecture is a multi-space interconnection system architecture designed by Huawei for the core storage system of enterprise-level data centers. Oceanstor 18000 can support up to 16 engines and 32 controllers.

TRUE

FALSE

206. Huawei Oceanstor v3 smartmigration is in the process of data synchronization between the source lun and the target lun. If the target lun fails, it will affect the business continuity of the host using the source lun.

TRUE

FALSE

207. Huawei UltaPath provides a variety of load balancing algorithms, which will calculate the overall load data volume based on the block size of each io request, and then perform load balancing algorithm which of the following algorithms?

round-robin

least-into

least-block

208. The smartdedupe in Oceanstor 5300 v3 can only be supported by file systems with thin features

TRUE

FALSE

209. In the Oceanstor v3 storage system, if there is an operation to start refactoring during the balance execution process, the balance will be suspended at this time, so that the refactoring will be executed first, and the balance will be started after the refactoring is completed.

TRUE

FALSE

210. Which of the following is not included in the characteristics of the InfiniBand protocol?

High speed

Remote Direct Memory Access Function

Development based on standard protocols

Transport offload, which can transfer packet routing from the chip level to the os

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211. In the description of Huawei Oceanstor v3 smartmigration feature principle, business data migration can be divided into two stages: business data synchronization and lun information exchange.

TRUE

FALSE

212. Which of the following protocols does not belong to the NAS protocol?

CIFS

NFS

FTP

213. Which of the following is not a feature of Oceanstor cloud service?

Comprehensive and regular inspections of storage devices, and in-depth health checks are triggered when failures occur

24*7 monitoring equipment alarms, and the alarm perception time is less than 5 minutes

When the alarm reaches the specified level, send an email to the cloud service platform, and the cloud service platform will automatically forward the email to the mailbox of the relevant personnel and send a text message to inform

The fault inspection report is automatically collected and sent back to the Huawei headquarters support center, and the headquarters service experts remotely analyze the fault

214. Oceanstor v3 storage series products support the cifs user quota function

TRUE

FALSE

215. The cli management mode of Oceanstor v3 can be accessed through ipv4 or ipv6.

TRUE

FALSE

216. Which one is not included in the characteristics of the pcie protocol?

High reliability

Point-to-point connection

Parallel bus structure

Frame-based transmission

217. Which of the following types of files is not recommended for the ASCII transfer mode in the FTP protocol?

*.txt

*.bat

*.cfg

*.bin

218. Which of the following technologies is used for the deduplication function in Oceanstor 5300 v3?

SHA256 algorithm

Byte comparison

SHA1 algorithm

File fixed length

219. Which of the following commands belongs to the WARNING type of Huawei storage?

import license

clear configuration_data

power off disk

reboot system

220. Which of the following application scenarios does not belong to the typical application scenarios of Oceanstor storage?

Automatic Tiering Storage Application

Disaster recovery application

High-density virtual machine applications

Multimedia applications with a capacity requirement above EB level

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221. In the Huawei Oceanstor v3 system, after the file system snapshot is successfully created, if the file system user wants to access the snapshot, they need to re-mount it in the snapshot directory to access it.

TRUE

FALSE

222. Which of the following scenarios is the Huawei Oceanstor V3 SmartCache feature applicable to?

Write random small io scenes

Read random small io scenes

Write sequential io scenarios

Reading requires io scene

223. In Oceanstor v3 storage, which of the following authentication methods does NFS not support?

NIS

LADP

Local authentication

AD domain

224. Can deduplication and compression in Oceanstor 5300 v3 be used at the same time?

can

can't

225. Which statement is correct about the Oceanstor v3 storage system cache read and write strategy?

The read strategy and write strategy can be configured as resident, default, recycling

Recycling strategies are suitable for scenarios with high performance requirements and small data volumes

When selecting a recovery strategy, read or write data is eliminated with the lowest priority

The resident strategy is suitable for reading and writing large blocks of data, and generally only reads and writes once in most cases

226. Huawei Oceanstor v3 smartmigration features and smartvirtualization are mutually exclusive and cannot be used together

TRUE

FALSE

227. Which of the following statements about the working principle of CIFS is correct?

Before establishing a shared connection, establish a session first, and then perform protocol negotiation

File operations can only be performed after a shared connection is established

Perform security authentication during the protocol negotiation phase

After the file operation is completed, no client request is required, and the server will automatically disconnect the shared connection

228. In Oceanstor v3 storage, which information of edevlun is the storage space directly provided by Huawei storage

data volume

meta volume

external lun

taget lun

229. Which of the following is correct about the use of the two performance characteristics of hierarchical storage and smartcache?

When using NL-SAS and SAS for tiered storage, use ssd as cache. This combination can effectively improve performance indicators and is the most cost-effective solution

If the hotspot data is scattered and changes rapidly, it is recommended to use tiered storage

If there are many ssds and hotspots are concentrated, ssd cache is the best choice

230. Which of the following is the maintenance software supported by Huawei Oceanstor v3 series storage products?

Oceanstor esdk

Oceanstor replication director

Oceanstor toolkit

Oceanstor ultrapath

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231. A certain lun is defined as a smart thin lun, and the initial allocation capacity is 20G. Now write 30G of data into this lun, and then delete 25G of data. How much space is this thin lun at this time?

10G

20G

30G

232. Which one is the correct understanding of the FTP active transmission mode?

The client uses port number 20 as the source port to establish a data connection

The client uses port number 21 as the source port to establish a data connection

The server uses port number 20 as the source port to establish a data connection

The server uses port number 21 as the source port to establish a data connection

233. Which model of the following Oceanstor v3 storage series products has a 3u controller enclosure?

Oceanstor 5500 v3

Oceanstor 5300 v3

Oceanstor 5600 v3

Oceanstor 6800 v3

234. After taking a snapshot of the source lun and modifying it at the same location, where will the modified data be written?

cow roll

Snapshot volume

Original volume

Exclusive mapping table

235. All exp expansion ports in Oceanstor v3 must be connected to pri expansion ports.

TRUE

FALSE

236. Which of the following is a high-risk command of the Huawei storage danger type?

import configuration_data

reboot system

show alarm

Chang alarm clear sequence list=3424

237. The link layer of the IB protocol mainly provides functions such as sequential forwarding and segmentation of information packets.

TRUE

FALSE

238. Which of the following features cannot improve the performance of Oceanstor v3 storage products?

smart tier

smart cache

smart partition

smart virtualization

239. Which of the following options does not belong to the function of the Oceanstor toolkit tool?

Deployment features

Upgrade function

Data migration function

Maintenance function

240. The eDevLun stored in Oceanstor v3 refers to the third-party heterogeneous device volume connected to Huawei storage

TRUE

FALSE

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241. When it is necessary to uninstall the Huawei UltraPath host multipath software, which of the following operations is correct?

Immediately execute the UltraPath unloading command after stopping the reading and writing of host services

In the iscsi business environment, first delete the disk mapping on the host, then disconnect all connections of the host iscsi initiator, and finally execute the UltraPath uninstall command

In the FC business environment, after disconnecting all FC host physical ports, execute the UltraPath uninstall command

242. The IB protocol network layer provides a routing mechanism for information packets from one substructure to another substructure

TRUE

FALSE

243. The worm feature of Huawei Oceanstor v3 is to add the worm attribute on the basis of the ordinary file system, so that the files in the file system can only be read and cannot be written.

TRUE

FALSE

244. Regarding the data write-through of Huawei Oceanstor v3 smartvirtualization, which of the following statements is correct?

Write-through means that after the data of the application service is written to the heterogeneous storage system, the heterogeneous storage system will return the write result to the host only after the heterogeneous storage system returns the write success

Write-back is more reliable than write-through. It is necessary to write data into heterogeneous arrays to return write success.

Compared with write-back, write-through has higher performance and less impact on the host

245. To replace the storage device controller, you need to confirm the following information. Which item is wrong?

For back-end networking, it is necessary to check whether the sas link is physically redundant

For the front-end networking, it is necessary to ensure that the physical links between the host and the array dual controllers are normal

You only need to ensure that the inspection results of the inspection tool pass

It is necessary to check whether the logical link from the host to the dual controller of the array is normal

246. During the operation of replacing the hard disk, which of the following is an incorrect operation?

Power off the hard disk first, and then pull out the hard disk

Pull out the hard disk directly when the hard disk is powered on and running

After the hard disk is pulled out, wait for more than 30 seconds before inserting a new hard disk

The type and capacity of the new hard disk and the faulty hard disk are consistent

247. Which one is correct about the Oceanstor v3 storage system prefetch strategy?

Intelligent prefetching is suitable for reading applications with a single data stream, or when it is impossible to determine whether the reading application is sequential

Variable prefetch is suitable for sequential read applications with fixed size, such as multi-user streaming media on demand, users use the same code stream

Fixed prefetching is suitable for database applications

Not applicable to multi-user multimedia on demand

248. Which one is correct in the description about the data switches of Oceanstor 18000 v3 storage series products?

Oceanstor 18500 products use pcie2.0 switches to communicate between engines

Oceanstor 18800 products use pcie3.0 switches to communicate between engines

Oceanstor 18500 products support expansion to 16 engines using two data switches

Oceanstor 18800 products support expansion to 16 engines using two data switches

249. In Oceanstor v3 synchronous remote replication, the master lun and the slave lun can be in the same array

TRUE

FALSE

250. The customer put forward the requirement of RPO=0 and RTO=0, and the colleague chose the active-standby synchronous remote replication disaster recovery solution. This solution:

Cannot meet customer requirements, RTO>0

Can meet customer requirements.

Cannot meet customer requirements RPO>0

Customer requirements RPO>0 and RTO>0 cannot be met.

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251. Compatibility issues need to be considered for file system backup. Which of the following statements is incorrect?

It is necessary to confirm the type and version of the operating system and file system of the backup source.

If the application is not in the backup software compatibility list, the application data can be exported to a file by other means, and then the file can be backed up.

Use the new version to back up the software, if the operating system version is too old, ask for an updated version.

The operating system or application version is too new, you can wait for the backup software version to be updated.

252. In the OceanStor V3 storage system, regarding the remote replication consistency group, which item is wrong?

All members must be synchronized, split, disconnected, and master-slave switched together.

It is used to maintain time consistency of mirrored data between multiple LUNs.

There can be both synchronous remote replication and asynchronous remote replication in a consistency group.

For remote replication in the same consistency group of Huawei arrays, the master must come from the same array, and the slaves must also come from the same array.

253. The initial data capacity of an application is 500GB. The backup frequency is once a week for full backup and 6 additional backups. The data storage period for both full backup and additional backup is 4 weeks, and the redundancy ratio is 20%.

Then the back-end storage capacity for 4 weeks is:

3320G

3504G

4380G

5256G

254. Which of the following backup types arranges the space occupied by backup media in the correct order:

Full backup > Cumulative Incremental Backup > Differential Incremental Backup

Cumulative incremental backup > differential incremental backup > full backup

Differential incremental backup>full backup>cumulative incremental backup

Full backup > Differential Incremental Backup > Cumulative Incremental Backup

255. For the Simpana software version 10, the Commserver supports both Windows and Linux operating systems.

TRUE

FALSE

256. Which item is wrong in the description of OceanStor V3 storage array synchronous remote replication?

After the master and slave LUNs write I/O successfully, the master array returns the write I/O success to the host.

The primary array writes the I/O data to the primary LUN and sends it to the secondary LU

The impact of synchronous remote replication on host write IO performance has nothing to do with the distance between the master and slave sites.

Synchronous remote replication can support one master LUN to replicate to two slave LUNs at the same time.

257. When the amount of backup data is large, it is recommended to use an integrated deployment solution instead of a separate one.

TRUE

FALSE

258. A colleague customizes a dual-active disaster recovery solution for a customer. The customer already has a set of OceanStor S2600T V2, and plans to purchase a new set of OceanStor 2600 V3, and place these two sets of equipment in two data centers to implement a dual-active disaster recovery solution. The solution is?

Not feasible. The active-active disaster recovery solution requires at least one storage system of OceanStor 5600 V3 or above.

Not feasible. The active-active disaster recovery solution requires at least one OceanStor 5800 V3 and above storage system to be implemented.

Not feasible. The active-active disaster recovery solution requires both data centers to be OceanStor 2600 V3 and above storage systems.

It is feasible, and the storage device meets the requirements of the active-active disaster recovery solution.

259. Regarding remote replication splitting, which of the following statements is correct?

Splitting can only be performed on the primary side array

Splitting can be performed on both the master and slave arrays

Splitting can only be performed on slave arrays

After performing splitting on the master array, it is necessary to perform splitting on the slave array

260. In the Simpana backup software, which statement about incremental backup is correct?

Back up data that has changed since the last backup

Backup data that has changed since the last full backup

Full backup of all data

Backup of all data after the initial backup data

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261. Which of the following descriptions about the backup domain of the OceanStor backup solution is wrong?

Can include 1 or more MediaAgent

Can include 1 or more iDataAgent

Can include 1 or more CommServe backup management nodes

Can include 1 or more clients

262. The system debugging log level is used to identify the severity and importance of a log. eReplication can divide the system debugging log into the following four levels in descending order of severity: error, warning, running, and debugging.

TRUE

FALSE

263. When OceanStor V3 creates a remote replication pair, which of the following is the default synchronization speed?

low

Medium

high

very high

264. Which of the following scenarios is not suitable for promoting the master-standby disaster recovery solution.

The customer configures low-end storage products on the disaster recovery side in order to save costs.

The customer needs RTO=0, RPO=0

The customer accepts the array layer disaster recovery technology.

265. Store the data blocks in the cache first, and then perform deduplication processing when the system is idle. The advantage is that it does not affect the performance of data transmission, and the disadvantage is that it requires additional storage space". Which deduplication technology is described above?

Source-side deduplication

Target-side deduplication

Parallel deduplication

Global deduplication

266. The customer has a third-party storage system and wants to build a local high-availability solution for the storage system. He plans to purchase OceanStor 5600 V3 and only purchase a HyperMirror license. This solution is?

Feasible, provided the local high availability requirements are met.

Not feasible, HyperMirror needs to be combined with the SmartVirtualization feature to achieve local high availability of heterogeneous storage systems.

Not feasible, HyperMirror needs to be combined with HyperCopir features to achieve local high availability of heterogeneous storage systems.

Not feasible, HyperMirror needs to be combined with HyperClone features to achieve local high availability of heterogeneous storage systems.

267. In a relatively large backup domain, using Simpana backup software, you can set up multiple cs, load sharing, and improve efficiency.

TRUE

FALSE

268. In the five-step method of disaster recovery scheme design, which one is the correct order of the following steps in the design process?

Disaster recovery solution selection --> Compatibility confirmation --> Storage capacity and disaster recovery bandwidth calculation --> Network design --> Disaster recovery function design

Disaster recovery solution selection --> Network design --> Storage capacity and disaster recovery bandwidth calculation --> Compatibility confirmation --> Disaster recovery function design

Compatibility Confirmation-->Network Design-->Storage Capacity and Disaster Recovery Bandwidth Calculation-->Disaster Recovery Function Design-->Disaster Recovery Solution Selection

Compatibility confirmation-->Network design-->Storage capacity and disaster recovery calculation-->disaster recovery solution selection-->disaster recovery function design

269. Which of the following is incorrect about the customer value of Huawei storage snapshot backup?

Reduce backup time

Reduce the amount of transfer and storage of backup data

Zero business impact

Cost reduction by 50%

270. Huawei storage products provide data center active-active solutions based on HyperMetro. By classifying services, some services are mainly based on data center A, data center B is hot standby, and some services are mainly based on data center B. Center B is a hot standby to achieve the effect of active-active.

TRUE

FALSE

Page 28 of 30

271. The primary storage array returns information of successful writing to the host.

4 Write IO data to the master and slave LUNs.

1-->2-->3-->4

1-->4-->3-->2

2-->1-->4-->3

3-->2-->1-->4

272. The data format before and after backup is consistent, and the backup data can be directly used to restore production data to ensure the continuity of business read and write.

TRUE

FALSE

273. In Huawei Oceanstor v3 smartpartition, a lun or file system can only be assigned to the partition that is consistent with its working engine id

TRUE

FALSE

274. When configuring nfs file sharing for Oceanstor v3 storage series products, which of the following options is not a nfs configuration item?

NFS

LDAP

Local User Groups

275. Huawei Oceanstor v3 smartQos has different priorities for each lun, scheduling different computing, cache and other system resources, and ensuring the normal business of high-priority luns when resources are tight

TRUE

FALSE

276. The engines of Oceanstor 18000 storage series products are interconnected by 10GE cables to realize communication transmission of management and business data

TRUE

FALSE

277. Which one of the following is incorrect when the description about Huawei Oceanstor v3 smarterase technology is incorrect?

When you choose to use the custom destruction method, you can overwrite up to 99 times

When the mirror data is destroyed, every time complete random data is written to the lun, it will trigger a check whether the expected number of times is reached

Support DOD and custom destruction methods, and the default destruction times are 3 times

278. The Huawei Oceanstor v3 storage system supports two file system compression strategies, deep and fast. When using the deep compression strategy, it saves more space

TRUE

FALSE

279. Which of the following belongs to the automatic load balancing technology supported by RAID2.0+ technology of Oceanstor 18000 storage series products?

smartmotion

smarttier

smartqos

smart partition

280. Which of the following commands is not a high-risk command for Huawei storage?

import license

export license

power off disk

import configuration_data

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281. What is the smallest partition that Huawei Oceanstor v3 smartpartition can set?

64MB

128MB

256MG

512MB

282. If Hypermetro adopts the quorum server mode, which of the following positions will the quorum server prevent?

Main site

Disaster recovery site

Third Party Sites

Put one on each of the master, disaster recovery, and third-party sites

283. Oceanstor 18000 storage series products use raid2.0+ technology to divide sas, ssd, nl-sas, and fc disks into chunks of 64mb in size. These small-grained data blocks are logically combined in the form of raid required by the business. Form the lun used by the application server.

TRUE

FALSE

284. Which of the following is not the main function of multi-path software?

Load balancing

failover domain failback

Encrypt data

Shield redundant disks

285. Which of the following is not a high-performance technology of hypermetro?

Zero data copy

fastwrite

Cache bubbles

Geo-optimized access

286. Which of the following statements about Oceanstor v3 storage system restoration and reconstruction is incorrect?

The priority data can be quickly restored, and the data that has not been updated does not require skin care

To complete recovery reconstruction, data difference log information is required

Restoration and reconstruction are used when the disk cannot be used normally and the raid group is in a degraded state

The in-place disk suddenly fails, and recovery and reconstruction will be performed at this time

287. In the Oceanstor 18000 storage system, when the link between the controller and the hard disk enclosure fails, the controller will forward the IO request that needs to be accessed to another controller in the engine, so as to complete the access to the hard disk data.

TRUE

FALSE

288. When using the files in the Oceanstor v3 quota, which of the following operations does not need to be checked?

Add files

View read file

Modify the file

Delete files

289. Huawei Oceanstor v3 smarterase has several limitations when using it. Which of the following statements is correct?

Does not support data destruction of the source lun that created the snapshot

If the storage resource of a certain lun comes from the SSD hard disk, destroying the data of the lun can achieve the expected effect

Support data destruction for snapshot lun

Support data destruction for tihin lun

290. In the Huawei Oceanstor v3 worn file system, the file signature mainly verifies the integrity of the file, but when the file is migrated, the fingerprint information cannot be migrated along with the file, and the fingerprint information needs to be calculated after the file migration is completed.

TRUE

FALSE

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291. In the Oceanstor v3 storage system, the core technology of the file system snapshot is row. If the thick lun takes a snapshot, the cow technology is mainly used to realize.

TRUE

FALSE

HCIP-Storage V5.0 H13-624_V5.0 Exam Dumps

HCIP-Storage V5.0 H13-624_V5.0 Exam Dumps

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